diff --git a/02-cs231n/spring1617_assignment1/assignment1/requirements.txt b/02-cs231n/spring1617_assignment1/assignment1/requirements.txt
index e06a766..e5d3fd4 100644
--- a/02-cs231n/spring1617_assignment1/assignment1/requirements.txt
+++ b/02-cs231n/spring1617_assignment1/assignment1/requirements.txt
@@ -22,7 +22,7 @@ jupyter-client==4.1.1
 jupyter-console==4.0.3
 jupyter-core==4.0.6
 matplotlib==2.0.0
-mistune==0.7.1
+mistune==2.0.3
 nbconvert==4.1.0
 nbformat==4.0.1
 notebook==4.0.6